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Nicholas A. Christakis Profile picture
@NAChristakis
Dec 11, 2022 • 6 tweets • 4 min read • Read on X
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A short thread of photos with other network scientists over the past decade or so.
With Tom Snijders and @twvalente and another person whose name I cannot place (help me?). About 15 years ago in DC.
With @kimmokaski and @FReedTsochas, about 8 years ago in Finland.
With @davidlazer and @barabasi and @barrywellman about 12 years ago, probably in Boston?
With my friend Laszlo @barabasi (in his lab in Boston, I think, about 12 years ago).
With @JacksonmMatt at @sfiscience a few months ago (had a great time on the panel with him on #SocialNetworks).

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More from @NAChristakis

Nicholas A. Christakis Profile picture
May 3
Social contagion is a powerful force.

People copy the thoughts, feelings, & actions of those to whom they are connected. Understanding social network structure & function makes it possible to use social contagion to intervene in the world to improve health, wealth, & learning.Image
In a large randomized controlled field trial in 24,702 people in 176 isolated villages in Honduras, published in @ScienceMagazine on May 3, 2024, we showed how social contagion can be used to improve human welfare. #HNL @eairoldi science.org/doi/10.1126/sc…
Image
To exploit social contagion, tools are needed to eficiently identify individuals who are better able to initiate cascades. To be maximally useful, such tools should be deployable without having to actually map face-to-face social network interactions. science.org/doi/10.1126/sc…
Read 17 tweets
Nicholas A. Christakis Profile picture
Apr 30
I have some thoughts on this fine statement by @Yale President Peter Salovey regarding desire by some students to impose "ideological litmus test" for access to a shared Yale space.

Salovey said: “Those protestors asked individuals who wished to pass through or enter their area, which is a shared campus space, to agree with their political viewpoints. This action is unacceptable and antithetical to the very purpose of a university.”

It’s is quite right to reject this impulse, but where might students have got this sort of idea?

The background for this statement is pro-Palestinian protests and certain recent actions by some protestors.

For the removal of doubt, I wholly support the right to protest and am sympathetic both to Israel and the civilians suffering horribly in Gaza. I have no problem with the tents or public art.

But protest that stops others from using the campus crosses line into civil disobedience and is distinct from free expression.

and
The problem with the otherwise commendable statement by President Salovey is that the students’ impulse to have a litmus test is part of a broader pattern of such actions at Yale (violating its liberal tenets). We have procedures and bureaucracies that do just this -- which may have given the students this very idea!
Read 7 tweets
Nicholas A. Christakis Profile picture
Dec 12, 2023
How will AI affect the way we treat each other?

In "hybrid systems" of humans and machines, how will AI (whether simple or complex) affect not just human-machine interactions, but human-human interactions in the presence of machines?

Will AI change human ethical behavior? 1/
In new work in @PNASNews, we showcase a novel cyber-physical system of people driving cars via the internet in an experimental diorama. This system allows us to explore how forms of AI affect existing human norms of cooperation and coordination. 2/ pnas.org/doi/10.1073/pn…
Image
Hiro Shirado (), @shn_kasa, and I tested how AI might affect norms of reciprocity using a novel cyber-physical lab experiment where online subjects (N=300 in 150 dyads) drove robotic vehicles remotely in a game of CHICKEN. #HNL 3/ shirado.net
pnas.org/doi/10.1073/pn…
Read 14 tweets
Nicholas A. Christakis Profile picture
Nov 26, 2023
If you hide people's wealth, you can make the economic gradient in happiness go away, in part by making poor people relatively happier.

New (somewhat dispiriting) experiments spearheaded by @Nishi_Akihiro in @NatMentHealth #HNL 1/ nature.com/articles/s4422…
Image
A lot of the economic gradient in subjective well being (SWB) with respect to wealth has to do with the invidious comparisons people can make with those around them. 2/
One classic study reported that most people prefer to choose A (current yearly income is $50,000 and others earn $25,000) over B (current yearly income is $100,000 and others earn $200,000).

People would rather be relatively rich and absolutely poor!

3/sciencedirect.com/science/articl…
Read 10 tweets
Nicholas A. Christakis Profile picture
Oct 24, 2023
Laundering of claims: This @CNN link () says that 2,00 children have died in Gaza recently, and attributes info to an 'aid agency,' namely @SavetheChildren, and provides an embedded link you can click to for possible independent data. But....cnn.com/2023/10/24/mid…
When you click on link, you go to an article which reports that 'at least 2,000 children killed in Gaza' (which might be true and would be awful – the situation in Gaza is horrific, for sure!): But the article provides an embedded link for its source....savethechildren.net/news/least-200…
And the source of the Save the Children article which was the source of the CNN article is this article, per its embedded link: . And that article doesn't mention 2,000 children and is info from Hamas, which cannot be deemed independent or honest.dw.com/en/israel-hama…
Read 4 tweets
Nicholas A. Christakis Profile picture
Mar 22, 2023
Fantastic letter from Dean Jenny Martinez of @Stanford @StanfordLaw defending fundamental principles of a university and addressing the wrong-headed means of protest employed by lawyers-in training at her school a few weeks ago. Bravo. law.stanford.edu/wp-content/upl…
I wish Presidents and Deans at universities had been able to forthrightly do such a thing for the past ten years.
"We cannot function as a law school from the premise that animated the disruption of Judge Duncan -- that speakers, texts, or ideas believed by some to be harmful inflict a new impermissible harm justifying a heckler’s veto simply because they are present on campus."
Read 5 tweets

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